ta = Max tar , tal ( ); tar = a2 − a1 2vr ; tal = l 2vz (3) In these equations, L is the magnet's inductance, Jop is the overall current density in the coil before the quench, A is the wire area, vr is the radial quench velocity, vz is the longitudinal quench velocity, l is the length of the magnet, and a1 (a2) is the inner (outer) coil radius. Relations for the quench velocities are given in r...